A test device for the impact performance of a shot bag

Abstract

This invention discloses a shotgun bag impact performance testing device, belonging to the technical field of impact testing devices. It includes: a support frame, horizontal fastening devices, longitudinal fastening devices, a double-ended screw, and an electric telescopic cylinder. The support frame has a groove at its bottom. Both ends of the double-ended screw pass through the groove and are connected to bearings in the groove. Two horizontal fastening devices are disposed within the groove and slidably connected to it. The two horizontal fastening devices are threadedly connected to both sides of the double-ended screw, with the threads on both sides of the double-ended screw in opposite directions. The longitudinal fastening device extends into the horizontal fastening devices and is slidably connected to them. The electric telescopic cylinder is fixed to the support frame, with its output end pointing downwards and fixedly connected to the longitudinal fastening device. The horizontal and longitudinal fastening devices of this invention can move horizontally and vertically, adapting to samples of different sizes. The test samples are easy to assemble and disassemble, and test residues can be collected.

Description

Technical Field

[0001] This invention belongs to the technical field of impact testing equipment, and particularly relates to a shotgun bag impact performance testing device. Background Technology

[0002] The shotgun bag impact test is an important test for verifying safety glass. The test method involves fixing the test sample to an impact testing device, then raising the shotgun bag to a certain height and releasing it to impact the front of the sample. Existing devices use channel steel with a height greater than 100mm for the main frame, securely fixed to the ground with bolts, etc. A 45kg impactor is suspended at the top by a 3mm steel wire rope, and the sample is clamped with a wooden or steel fastening frame. However, the sample sizes used for testing are not standard, and the existing impact testing device cannot accommodate test samples of different sizes.

[0003] Furthermore, the existing device requires unscrewing the bolts connecting the fastening frame to the main body of the test frame after each impact test, moving another sample, placing the fastening frame back on, and then retightening the bolts. This process is very time-consuming, labor-intensive, and poses a certain degree of danger. After the impact test, a large amount of test residue may be scattered on the ground. The residue is small in size and large in quantity, making it difficult to clean up. Summary of the Invention

[0004] In view of this, the present invention provides a shotgun bag impact performance testing device that can test samples of different sizes. The samples are easy to install and remove on the device, and it also has a residue collection function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A shotgun bag impact performance testing device includes: a support frame, horizontal fastening devices, longitudinal fastening devices, a double-ended screw, and an electric telescopic cylinder. The support frame has a groove at its bottom. Both ends of the double-ended screw pass through the groove and are connected to bearings in the groove. Two horizontal fastening devices are disposed within the groove and are slidably connected to it. The two horizontal fastening devices are threadedly connected to both sides of the double-ended screw, with the threads on both sides of the double-ended screw having opposite directions. The longitudinal fastening device extends into the horizontal fastening devices and is slidably connected to them. The electric telescopic cylinder is fixed to the support frame, with its output end pointing downwards and fixedly connected to the longitudinal fastening device.

[0007] Furthermore, it also includes a shotgun bag and a steel wire rope. A shotgun bag support rod is provided at the top of the support frame, and the shotgun bag is fixedly connected to the bottom end of the shotgun bag support rod by the steel wire rope.

[0008] Furthermore, the horizontal fastening device includes a horizontal fastening bracket and a first mounting groove. Two horizontal fastening brackets are disposed in the groove and slidably connected to the groove. The two horizontal fastening brackets are respectively threaded to both sides of the double-ended screw. The first mounting groove is installed on the side wall of the horizontal fastening bracket.

[0009] Furthermore, the horizontal fastening device also includes a slide rod, which is fixedly installed in the groove, and the horizontal fastening bracket is slidably connected to the slide rod.

[0010] Furthermore, the longitudinal fastening device includes a longitudinal telescopic rod, a longitudinal sliding rod, a telescopic rod support rod, a sliding rod support rod, and a second mounting groove. The two longitudinal telescopic rods extend into the horizontal fastening bracket and are slidably connected to the horizontal fastening bracket. The support frame has a first sliding groove and a second sliding groove on both sides. The telescopic rod support rod passes through the two longitudinal telescopic rods, and the two ends of the telescopic rod support rod are slidably connected in the first sliding groove. A connecting block is provided in the middle of the telescopic rod support rod, and the connecting block is connected to the output end of the electric telescopic cylinder. The sliding rod support rod passes through the two longitudinal sliding rods, and the two ends of the longitudinal sliding rod are slidably connected in the second sliding groove. The second mounting groove is installed on the side wall of the longitudinal sliding rod.

[0011] Furthermore, it also includes a third mounting slot, which is mounted on the support frame.

[0012] Furthermore, it also includes a motor, which is located on one side of the support frame, and the output end of the motor is fixedly connected to the double-ended screw.

[0013] The beneficial effects of this invention are as follows:

[0014] The electric telescopic cylinder of this invention can pull the longitudinal telescopic rod to slide up and down on the horizontal fastening bracket to adapt to the height of the sample to be tested. The longitudinal sliding rod slides up and down on the longitudinal telescopic rod and embeds the top of the sample to be tested into the first mounting groove. The double-ended screw rotates on the support frame, driving the two horizontal fastening brackets to move in opposite directions on the double-ended screw to adapt to the width of the sample to be tested. The first mounting groove fixes both sides of the sample to be tested. As the horizontal fastening device and the longitudinal fastening device move in the horizontal and vertical directions, the sample to be tested is embedded into the first mounting groove, the second mounting groove, and the third mounting groove, eliminating the need for bolt fastening, which is convenient and quick. The grooves not only support the sliding of the horizontal fastening brackets, but also allow the residue after the test to fall into the grooves for collection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a shotgun bag impact performance testing device.

[0017] Figure 2 This is a front view of a shotgun bag impact performance testing device.

[0018] Figure 3 This is a left view of a shotgun bag impact performance testing device.

[0019] Figure 4 This is a top view of a shotgun bag impact performance testing device.

[0020] Figure 5 This is a schematic diagram of a shotgun bag impact performance testing device without a third mounting slot.

[0021] In the figure:

[0022] 10-Support frame, 11-Groove, 12-Shotgun bag support rod, 13-First slide groove, 14-Second slide groove, 20-Horizontal fastening device, 21-Horizontal fastening bracket, 22-First mounting groove, 23-Slide rod, 30-Longitudinal fastening device, 31-Longitudinal telescopic rod, 32-Longitudinal sliding rod, 33-Telescopic rod support rod, 331-Connecting block, 34-Slide rod support rod, 35-Second mounting groove, 40-Double-ended screw, 50-Electric telescopic cylinder, 60-Shotgun bag, 70-Wire rope, 80-Third mounting groove, 90-Motor, 100-Sample. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] See attached document Figure 1-5As shown, the present invention provides a shotgun bag impact performance testing device, including: a support frame 10, a horizontal fastening device 20, a longitudinal fastening device 30, a double-ended screw 40 and an electric telescopic cylinder 50. The bottom of the support frame 10 is provided with a groove 11, and the two ends of the double-ended screw 40 pass through the groove 11. The groove 11 is a cubic pool. The horizontal fastening device 20 is slidably connected to the bearing in the groove 11 and threadedly connected to both sides of the double-ended screw 40. The threads on both sides of the double-ended screw 40 are in opposite directions. Rotating the double-ended screw allows the horizontal fastening devices 20 to move in opposite directions. The longitudinal fastening device 30 extends into the horizontal fastening device 20 and is slidably connected to it. The electric telescopic rod is fixed to the support frame 10, and its output end is fixedly connected downward to the longitudinal fastening device 30. The vertical extension and retraction of the electric telescopic rod can drive the longitudinal fastening device 30 to slide up and down in the horizontal fastening device 20. The horizontal movement of the horizontal fastening device 20 and the vertical movement of the longitudinal fastening device 30 can accommodate samples 100 of different sizes. After the sample 100 is impacted, the fragments fall backward into the groove 11, and the two horizontal fastening devices 20 can move towards the center to collect the scattered residues.

[0025] A shotgun bag impact performance testing device also includes a shotgun bag 60 and a steel wire rope 70. A shotgun bag support rod 12 is provided at the top of the support frame 10. The shotgun bag 60 is fixedly connected to the bottom end of the shotgun bag support rod 12 by the steel wire rope 70. During the test, the shotgun bag 60 is pulled upward. The shotgun bag 60 makes a circle with the connection point between the steel wire rope 70 and the shotgun bag support rod 12 as the center and the length of the steel wire rope 70 as the radius. When the shotgun bag 60 reaches the lowest point, the velocity direction is horizontal, and it just collides with the sample 100.

[0026] The horizontal fastening device 20 includes horizontal fastening brackets 21 and a first mounting groove 22. Two horizontal fastening brackets 21 are slidably connected in the groove 11 and threadedly connected to both sides of the double-ended screw 40. The first mounting groove 22 is mounted on the side wall of the horizontal fastening brackets 21. Rotating the double-ended screw 40 causes the two horizontal fastening brackets 21 to move towards each other, embedding both sides of the sample 100 into the first mounting groove 22. The horizontal fastening device 20 also includes a sliding rod 23, which is fixedly installed in the groove 11. The horizontal fastening brackets 21 are slidably connected to the sliding rod 23. When the horizontal fastening brackets 21 move on the double-ended screw 40, the sliding rod 23 allows for more stable movement of the horizontal fastener within the groove 11.

[0027] The longitudinal fastening device 30 includes a longitudinal telescopic rod 31, a longitudinal sliding rod 32, a telescopic rod support rod 33, a sliding rod support rod 34, and a second mounting groove 35. The two longitudinal telescopic rods 31 extend into the horizontal fastening bracket 21 and are slidably connected to the horizontal fastening bracket 21. The support frame 10 has a first sliding groove 13 and a second sliding groove 14 on both sides. The telescopic rod support rod 33 passes through the two longitudinal telescopic rods 31. The two ends of the telescopic rod support rod 33 are slidably connected in the first sliding groove 13. A connecting block 331 is provided in the middle of the telescopic rod support rod 33. The connecting block 331 is connected to the output end of the electric telescopic cylinder 50. The sliding rod support rod 34 passes through the two longitudinal sliding rods 32. The two ends of the longitudinal sliding rods 32 are slidably connected in the second sliding groove 14. The second mounting groove 35 is installed on the side wall of the longitudinal sliding rod 32. The electric telescopic cylinder 50 drives the telescopic rod support rod 33 to move up and down via the connecting block 331, and then drives the longitudinal telescopic rod 31 to slide up and down in the horizontal fastening bracket 21. The telescopic rod support rod 33 makes the longitudinal telescopic rod 31 more stable when sliding up and down, and when the shotbag 60 impacts the sample 100, the telescopic rod support rod 33 transmits the horizontal force to the support frame 10. The handheld longitudinal sliding rod 32 slides up and down in the longitudinal telescopic rod 31 to adapt to the height of the sample 100, and then moves downward to embed the second mounting groove 35 into the top of the sample 100. When the shotbag 60 impacts the sample 100, the sliding rod support rod 34 transmits the horizontal force to the support frame 10. When the horizontal fastening bracket 21 moves towards or near each other, the longitudinal telescopic rod 31 can slide on the telescopic rod support rod 33, and the longitudinal sliding rod 32 can slide on the sliding rod support rod 34 to drive the second mounting groove 35 to adapt to the width of the sample 100.

[0028] A shotbag impact performance testing device also includes a third mounting groove 80, which is mounted on a support frame 10 and is used to embed the bottom end of the sample 100.

[0029] A shotbag impact performance testing device also includes a motor 90, which is located on one side of the support frame 10. The output end of the motor 90 is fixedly connected to the double-ended screw 40. The motor 90 drives the double-ended screw 40 to rotate, thereby realizing the opposite or opposite movement of the horizontal fastening bracket 21 to adapt to the width of the sample 100.

[0030] Example

[0031] The electric telescopic cylinder 50 retracts, causing the telescopic rod support rod 33 to move upward, and then causing the longitudinal telescopic rod 31 to slide upward in the horizontal fastening bracket 21. Since the longitudinal sliding rod 32 is slidably connected on the longitudinal telescopic rod 31, the longitudinal sliding rod 32 is at the bottom of the stroke of the longitudinal telescopic rod 31. The electric telescopic cylinder 50 retracts to provide sufficient height space for placing the sample 100 in the third mounting slot 80. After the sample 100 is placed in the third mounting slot 80, the electric telescopic cylinder 50 descends, and at the same time, the movement of the longitudinal sliding rod 32 on the longitudinal telescopic rod 31 is adjusted so that the top of the sample 100 is embedded in the second mounting slot 35. Then the motor 90 is started to move the horizontal fastening bracket 21 towards each other until both ends of the sample 100 are embedded in the first mounting slot 22. After the sample 100 is secured, the shotgun bag 60 is pulled up to a sufficient height and then released to impact the sample 100. If the sample 100 is shattered, the residue falls into the groove 11. The motor 90 drives the horizontal fastening bracket 21 to move horizontally, collecting the residue in the groove 11 in the middle for collection.

[0032] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for testing the impact performance of a shotgun bag, characterized in that, include: The system comprises a support frame, horizontal fastening devices, longitudinal fastening devices, a double-ended screw, and an electric telescopic cylinder. The support frame has a groove at its bottom. Both ends of the double-ended screw pass through the groove and are connected to bearings within it. Two horizontal fastening devices are disposed within the groove and are slidably connected to it. The two horizontal fastening devices are threadedly connected to both sides of the double-ended screw, with the threads on both sides of the double-ended screw having opposite directions. A longitudinal fastening device extends into the horizontal fastening devices and is slidably connected to them. The electric telescopic cylinder is fixed to the support frame, with its output end pointing downwards and fixedly connected to the longitudinal fastening device. The horizontal fastening device includes a horizontal fastening bracket and a first mounting groove. Two horizontal fastening brackets are disposed in the groove and are slidably connected to the groove. The two horizontal fastening brackets are respectively threaded to both sides of the double-ended screw. The first mounting groove is installed on the side wall of the horizontal fastening bracket. The longitudinal fastening device includes a longitudinal telescopic rod, a longitudinal sliding rod, a telescopic rod support rod, a sliding rod support rod, and a second mounting groove. The two longitudinal telescopic rods extend into the horizontal fastening bracket and are slidably connected to the horizontal fastening bracket. The support frame has a first sliding groove and a second sliding groove on both sides. The telescopic rod support rod passes through the two longitudinal telescopic rods, and the two ends of the telescopic rod support rod are slidably connected in the first sliding groove. A connecting block is provided in the middle of the telescopic rod support rod, and the connecting block is connected to the output end of the electric telescopic cylinder. The sliding rod support rod passes through the two longitudinal sliding rods, and the two ends of the longitudinal sliding rod are slidably connected in the second sliding groove. The second mounting groove is installed on the side wall of the longitudinal sliding rod. It also includes a motor, which is located on one side of the support frame, and the output end of the motor is fixedly connected to the double-ended screw; The sample was shattered, and the residue fell into the groove. The motor drove the horizontal fastening bracket to move horizontally, collecting the residue in the groove to the center for collection.

2. The shotgun bag impact performance testing device according to claim 1, characterized in that, It also includes shotgun bags and steel wire ropes. A shotgun bag support rod is provided at the top of the support frame, and the shotgun bag is fixedly connected to the bottom end of the shotgun bag support rod by the steel wire rope.

3. The shotgun bag impact performance testing device according to claim 1, characterized in that, The horizontal fastening device also includes a slide bar, which is fixedly installed in the groove, and the horizontal fastening bracket is slidably connected to the slide bar.

4. The shotgun bag impact performance testing device according to claim 1, characterized in that, It also includes a third mounting slot, which is mounted on the support frame.

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